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(1) Decide if the following series converge or not. Justify your answers using appropriate tests (12 marks): m3 (a) In=1 (In

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Givene n3 a E (lnan n=1 s n=1 3 n nen (2) E n=1 n2 en (2) E n2 en (2) n=1 series divergence test diverges. BY n² is n=1 g n3b b IM8 nint nintz n=1 Here Un= nintz nin it 5312 Un = • Vn = n3/2 3/2/1+2 3/2 x lim un n-soo Vn lim n-> 2125175 lim no Vitann 23n-1 n=1 Here Unt nn - - ; Unti (n+un+1 23(n+14 239-1 3n-1 2 Unti Hallitu) X lim lim 23(n+1) un nyo nn no n->00 (n+1)(n+1

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